[INFO] fetching crate serde_at 0.23.0...
[INFO] checking serde_at-0.23.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate serde_at 0.23.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate serde_at 0.23.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_at 0.23.0
[INFO] finished tweaking crates.io crate serde_at 0.23.0
[INFO] tweaked toml for crates.io crate serde_at 0.23.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding hash32 v0.2.1 (available: v0.3.1)
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.8.0)
[INFO] [stderr]       Adding heapless-bytes v0.3.0 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c252a0c20cfb9d51d0aa8ffd0429228ef829fb7508c99859deb7fff8ac61c12
[INFO] running `Command { std: "docker" "start" "-a" "9c252a0c20cfb9d51d0aa8ffd0429228ef829fb7508c99859deb7fff8ac61c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c252a0c20cfb9d51d0aa8ffd0429228ef829fb7508c99859deb7fff8ac61c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c252a0c20cfb9d51d0aa8ffd0429228ef829fb7508c99859deb7fff8ac61c12", kill_on_drop: false }`
[INFO] [stdout] 9c252a0c20cfb9d51d0aa8ffd0429228ef829fb7508c99859deb7fff8ac61c12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8477f970abc94b388892d0410e6bdbaae8486ba1c9e5a047d9656c676b31ed04
[INFO] running `Command { std: "docker" "start" "-a" "8477f970abc94b388892d0410e6bdbaae8486ba1c9e5a047d9656c676b31ed04", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking serde_at v0.23.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/de/mod.rs:77:51
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<'a> Deserializer<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 77 |     const fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout]    |                                                   ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/de/mod.rs:77:51
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<'a> Deserializer<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 77 |     const fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout]    |                                                   ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `Command { std: "docker" "inspect" "8477f970abc94b388892d0410e6bdbaae8486ba1c9e5a047d9656c676b31ed04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8477f970abc94b388892d0410e6bdbaae8486ba1c9e5a047d9656c676b31ed04", kill_on_drop: false }`
[INFO] [stdout] 8477f970abc94b388892d0410e6bdbaae8486ba1c9e5a047d9656c676b31ed04